about CART2(simulink) report

Excuse me,

For studying a report(Advanced Control Design for Wind Turbines: nrel.gov/docs/fy08osti/42437.pdf.),

I have a ciritical problem.

I want to control with Matlab/Simulink.

Thus, I just followed the report and build the simulink provided.

However, I had a error about [Figure 3.6. Simulink model of the generator torque controller].

[attachment=2]Q_1.jpg[/attachment]

[attachment=1]Q_2.jpg[/attachment]

[attachment=0]Q_3.jpg[/attachment]

Truely, I am not a master about Matlab/Simulink.

I think that it’s a problem about using [If Action Subsystem Block].

Please, Would you like to help me?

be waiting replying…